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Use a genetic diagram to work out the probability that the offspring have cystic fibrosis if both parents are carriers.

CF is a homozygous recessive condition. This means that it is inherited, ie a child gets the condition by the genetic material passed on to it from its parents. Let's call the faulty allele f (which is also ...
EG
Answered by Eksha G. • Biology tutor
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What is Hund's rule?

Electrons occupy every orbital in each subshell once and then occupy the full orbital with both electrons
IN
Answered by Intesar N. • Chemistry tutor
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What is the charge of a nucleus?

Neutral
IN
Answered by Intesar N. • Chemistry tutor
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What does the DNA sequence being 'degenerate' mean?

Amino acids are coded for by specific codons. There are some instances where some particular amino acids can be coded for by more than one codon (codon being three nucleotides bonded together). This is known...
BN
Answered by Bibi N. • Biology tutor
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What is the difference between language, structure and form in analysis of poetry?

Language: To analyse language we analyse the poet's choice and use of lexis. It's helpful to ask: What connotations does a word carry and why might the poet have chosen to use this specific word? What langua...
RB
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